Pedrollo 4SR18-N submersible pumps are specifically designed for water supply from boreholes, though can also be used in other submersible applications in either vertical or horizontal configuration. They feature a hydraulic design that incorporates floating impellers which together with especially resistant component materials provide high resistance to sand content in the pumped water.
The pump impellers and diffusers are made from technopolymer while the stage casings, top housing, suction connector, pump sleeve and shaft are made of AISI 304 stainless steel.
MOTOR
Pumps are coupled to a Pedrollo two pole sealed motor constructed principally from AISI 316 stainless steel. Drytek control box is available for both single phase and three phase pump control which incorporates incoming mains isolator, digital display of motor operating status and protection against over and under voltage, motor overload and phase sequence loss. The controller can be connected directly to the mains power supply
Enclosure Class: IP68
Insulation Class: F
Speed: 2900rpm
OPERATING CONDITIONS
Pumped Liquid: Thin, clean, chemically non aggressive liquids with a maximum sand content of 150g/m³.
Max. Liquid Temperature: +35°C.
Max. Silt Content: 150g/m³
Min. Borehole Diameter: 100mm
Max. Immersion Depth:200m
PUMP DATA
| Model |
Power(kW) |
Current (A) |
DN(") |
Dimensions (mm) |
Weight (kg) |
| kW |
HP |
1x240V |
3x415V |
H1 |
H2 |
| 4SR18/9 |
2.2 |
3 |
15 |
6 |
2 |
786 |
437 |
18 |
| 4SR18/12 |
3 |
4 |
|
7 |
990 |
450 |
21 |
| 4SR18/16 |
4 |
5.5 |
|
9 |
1261 |
625 |
31 |
| 4SR18/22 |
5.5 |
7.5 |
|
12 |
1668 |
725 |
40 |
| 4SR18/30 |
7.5 |
10 |
|
16 |
2211 |
845 |
50 |
